Tobacco pipe



June 1, 1937. HIRSC 2,082,106

TOBACCO PIPE Filed April 21, 1956 INVENTOR.

Patented June 1, i937 STATES PATENT 1 Claim. (01. 1321-42) This invention relates to improvements in tobacco pipes and has particular reference to a device for admitting cooling air intothe bowl of a pipe.

5 It has been heretofore suggested to provide various means for the bowl of a smoking pipe having'as their basic feature the supply of atmospheric air to the interior of the bowl during the smoking process, said air being intended to 1 cool the smoke and thereby reduce or eliminate the biting or burning sensation produced upon the tongue of the smoker and also to minimize positions thereof, and this consequently requires the smoker to draw harder in order to obtain the desired amount of smoke; and furthermore, that the air entering the draft opening does not 25 have the opportunity to circulate through the intermediate portion of the mass of tobacco in the bowl where the cooling effect of the air upon the tobacco will be more pronounced, especially 3 during the frequent and more or less prolonged intervals when the smoker is not actually drawing smoke into the mouth. Additionally, the known types of pipes with draft openings in the bottom thereof are ineffectual in preventing 35 the undesirable leakage of nicotine which accumulates in said bottom.

In accordance with the present invention it is proposed to overcome the above dimculties by mounting in the bottom of the pipe bowl a member in the nature of an air nozzle provided with a head portion which projects upwardly into the bowl to a point above the smoke passage in the stem of the pipe to thereby cause air flowing into the nozzle under'the influence of the heat generated by the burning tobacco to pass up- .wardly into the mass of tobacco to 'a greater extent than in the known type of pipe mentioned, and thus tend to cooisaid tobacco more emciently. Also, with the nozzle projecting above 0 the smoke passage, there is less likelihood of drawing an excessive amount of air through the nozzle and into said passage.

A further feature resides inthe construction of the nozle member and its mounting in the 55 pipe bowl in such manner that nicotine which invariably accumulates to some extent in the bottom of the bowl will be efiectively prevented from leaking through the opening in the bowl in which said nozzle is mounted.

The inventive idea involved. is capable of re- 5 ceiving a variety of mechanical expressions one of which, for purposes of illustration, is shown in the accompanying drawing wherein:

Figure 1 a fragmentary longitudinal section through a tobacco pipe showing the invention applied thereto.

Figure 2 is a bottom plan view, an

Figure 3 is a perspective view of the nozzle and ring member used in conjunction therewith.

Referring more particularly to the accompanying drawing, the numeral 4 indicates the bowl of a tobacco pipe of ordinary construction having a stem 5 extending therefrom and provided with the usual smoke passage 6 which communicates with the interior of the bowl at the bottom thereof. Y

In carrying out the present invention, the wall I of the bowl at the bottom thereof, and preferably at its center, is provided with an opening I extending therethrough and adapted to receive the shank 8 of an air nozzle which embodies the characteristic features of the invention. Said nozzle may be made of a metal and its shank 8 is of a length equal to the thickness of the wall in which the opening is formed and is of the same diameter as said opening so as to snugly fit the same. The upper end of the nozzle is enlarged to form a frusto-conical head 9 which provides a base Ill adapted to seat against the interior surface of the bottom of the bowl, which surface may be flattened as indicated at H so that it will contact the entire fiat surface of the base in. and thus provide a snug fit between the abutting surfaces. In this manner an effective seal will be established at this point which will minimize the possibility of seepage into the opening '8 of nicotine which may accumulate in the bottom of the. bowl. To further avoid such possibility the lower outer extremity of theshank 8 of the nozzle is encircled, in spaced relation thereto, by a clinching ring l2 imbedded in the exterior surface of the bottom of the bowl. When said ring is in position, it tends to prevent any possible slight spreading or spacing of the wood or other material of the pipe from the outer end of the shank 8 surrounded by said ring and, in so doing maintains a tight fit of the shank in the opening 1 to further seal the latter against leakage of nicotine.

The nozzle is provided with an air vent I8 zle is of such length as to extend upwardly into the bowl to a point. beyond the adjacent inner end of the smoke passage 6 so that the inner end of the nozzle will not be in alignment with said passage. By so positioning the head with the vent 13 extending substantially perpendicular to said passage, the air flowing through said vent will pass upwardly, as indicated by the arrows, into the mass of tobacco in the bowl to a greater extent than if the vent were merely formed in the bottom wall of the bowl. This upward passage of the air into the intermediate portion of said mass of tobacco is accelerated by the heat generated by the burning tobacco and tends to cool the same while smoke isnot actually being drawn through the passage 6 into the mouth so that when this action does take place a pronounced cooling efiect will be produced upon the smoke which is drawn through the stem by the down-draft also indicated by the arrows. When smoke is being drawn into the passage 6, the fact that the nozzle 9 extends above said passage, instead of being below or in alignment therewith, reduces to some extent the amount 0! air which is drawn into the vent l3 by suction since there is .no direct draft, and consequently the smoker does not have to draw so hard in order to obtain the desired amount of smoke, and yet sufficient air is drawn in through said vent to have the required cooling effect in addition to that which has been created by the inflow of air secured between pufis upon the pipe.

What is claimed is:

A tobacco pipe comprising a bowl having an opening extending through the wall thereof with the portion of the bowl surrounding the inner end of said opening flattened to form a seat, a nozzle fitted in said opening and having a shank equal in length to the thickness of said bowl at said opening, a conicalhead on the inner end of said shank and having a base engaging said seat to seal said opening,'said head and shank having an air passage extending longitudinally throughout the length thereof, and a clinching ring imbedded in the outer surface of said bowl in spaced encircling relation to the outer end of said shank.

RUDOLPH HIRSCH. 

